Science Game – Gear Kit The Cranked Doorbell (Ages 6+)


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Contains: a wooden board, 3 wooden cogs, a bell, screws, nuts and plastic seals, glue
Kit dimensions: 30 x 20 x 6 cm
Assembly time: 40 minutes
All ages from 6 years old
Brand : KOA KOA


The child himself assembles the cogs, nails and bell on the wooden board to obtain a beautiful cranked bell. Each step is easy and is explained in a very complete illustrated manual, in French and English. No additional tools are required for installation.
The child learns how gears work, by manipulating the material, and by doing the construction himself. What pride once he rings the bell ! It is intended to be hung next to a door.
Here is something to entertain your young inventors…

livraison offerte dès 35 euros d’achat


This gear and construction kit is designed by the French brand Koa Koa and distributed by Poppik. By building his doorbell your child will :
– Discover the different types of gears: pinion, cycloid, rack…
– Make a doorbell using screws, nuts and seals
– Bring his own touch of creativity by decorating his doorbell with paint or pastels, if he wishes
– Hang the doorbell next to your door and use it regularly
This gear kit will develop the curiosity of your children but also their knowledge on a subject that fascinates them. It is easy to use and does not require any additional equipment.
This science game encourages children to create with their hands and understand scientific phenomena in their daily lives. Once the construction is complete, they will have a nice toy that they made themselves.
It is an activity that values the child since he builds an object by himself and understands how it works in detail.
Once the crank doorbell is built, children can screw the doorbell to their door, there are 4 holes provided.


– Koa Koa takes special care to manufacture the various components of its games in locations as close as possible to the place of assembly. Everything is assembled in Normandy, in an ESAT.
– France is always the preferred place of production when possible. Koa Koa preferably chooses European countries for all components that are not available in France. Thus, the screws come from France and Germany, the elastics come from France, the bell comes from Germany, the brochure is printed in Germany, the wooden components and the cardboard pack come from Poland.
– None of the components in this gear kit are from Asia.


Open the box and start by separating the gear kit components. Then follow the instructions in the manual. For young children, adult assistance may be necessary. But the activity has been designed so that the child can be as independent as possible.
– This construction kit is recommended for children as young as 8 years old
– It is an ideal kit for all those who love construction games, who are interested in science or who enjoy manual activities, for children curious to test and discover new things


This object was thought and designed by a renowned designer, Oscar Diaz. After working for Matali Crasset in Paris, he studied product design in London under Ron Arad. Within his design studio, he now collaborates with many brands, and teaches his approach and vision of design in universities.
By calling upon a designer to conceive each product, Koa Koa is part of an artistic approach and proposes a real reflection on the objects: Koa Koa proposes objects that are easy to use, easy to build, beautiful and sensitive.


Through its educational and playful construction kits,Koa Koa‘s mission is to help children make, invent, be creative and independent. These kits will allow children to disconnect from screens to rediscover the pleasure of making with their hands. Through this first playful approach to science, Koa Koa wants to give them the taste to innovate, to think by themselves, to try, to make mistakes and to correct their errors.
Through each of its kits, Koa Koa wants to reconcile science and art by stimulating the two hemispheres of the brain (the right one, which solves problems, and the left one, which appeals to the imagination); to learn to be bold and to dare to take risks; to spend time with families and to learn alongside the parents


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